Directions

Heat oven to 350 degrees F. Melt 3 tablespoons butter in a 10-inch cast-iron skillet over medium-high heat. Stir in 1/4 cup maple syrup and the brown sugar. Stir until the sugar dissolves. Bring to a boil and cook for 2 minutes. Remove from heat and arrange pear slices in skillet in a circle, overlapping the slices with wider ends facing out. Set the skillet aside.

In a small bowl, whisk together egg yolks, egg, and 1/4 cup sour cream, the remaining 1/2 cup maple syrup, and the vanilla. Set egg mixture aside.

In a large bowl, combine flour, granulated sugar, baking powder, baking soda, and salt. With mixer on medium speed, blend in remaining 8 tablespoons butter and remaining 1/4 cup sour cream. Working in three additions, mix in egg mixture, scraping down sides of bowl after each. Pour batter over pears in skillet.